PR1 — Zea mays

Summary

ZM00001EB304940 (ZmPR1) on maize chromosome 7 encodes a CAP-domain-containing protein with cytokine activity and protein binding, belonging to the V5 allergen-like family. The gene is associated with activation of immune response, cytokine production, salicylic acid metabolism, and priming of cellular response to stress. It is linked to defense responses including systemic acquired resistance, disease resistance, and responses to herbivores, water, and cadmium. ZmPR1 is also associated with traits such as grain yield, plant height, anthocyanin content, total soluble sugar content, germination rate, and plant color. The protein localizes to secretory vesicles, the vacuole, the plant-type cell wall, and the extracellular space. Studies of related genes in other species link the family to salicylic acid-mediated defense, pathogen resistance, and abiotic stress tolerance.